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May 30 2007

Longest Words In The English Language Dictionary

Yesterday I wrote a post about the 100 Words High School Grads And Parents Should Know and today while I was watching the 2006 Scripps National Spelling Bee, I came up with today’s post which is quite similar.

In the English Language, there are many words that are longer than most, but some are not even real words. However, here is a list of the longest words.

Lets start with the longest non-technical word and then move on to words that are technical in matter.

  • Floccinaucinihilipilification (29 letters) – “the act or habit of estimating or describing something as worthless, or making something to be worthless by deprecation”. (the longest non-technical word)
  • Pseudopseudohypoparathyroidism (30 letters) – inherited disorder that closely simulates the symptoms, but not the consequences of pseudohypoparathyroidism, thus it has mild or no manifestations of hypoparathyroidism or tetanic convulsions.
  • *Supercalifragilisticexpialidocious (34 letters) – the 34-letter title of a song from the movie Mary Poppins, does appear in several dictionaries, but only as a proper noun defined in reference to the song title. The attributed meaning is “a word that you say when you don’t know what to say.
  • Pneumonoultramicroscopicsilicovolcanoconiosis (45 letters) – “a factitious word alleged to mean ‘a lung disease caused by the inhalation of very fine silica dust usually found in volcanos’. It was coined to serve as supposedly the longest English word. The more general and widely used term for this condition is pneumoconiosis, also known as black lung disease.
  • Taumatawhakatangihangakoauauotamateapokaiwhenuakitanatahu (85 letters) – the Māori name for an otherwise unremarkable hill, 305 metres high, close to Porangahau, south of Waipukurau in southern Hawke’s Bay, New Zealand. The name is often shortened to Taumata by the locals for ease of conversation.
  • acetylseryltyrosylserylisoleucylthreonylserylprolylserylglutaminyl-
    phenylalanylvalylphenylalanylleucylserylserylvalyltryptophylalanyl-
    aspartylprolylisoleucylglutamylleucylleucylasparaginylvalylcysteinyl-
    threonylserylserylleucylglycylasparaginylglutaminylphenylalanyl-
    glutaminylthreonylglutaminylglutaminylalanylarginylthreonylthreonyl-
    glutaminylvalylglutaminylglutaminylphenylalanylserylglutaminylvalyl-
    tryptophyllysylprolylphenylalanylprolylglutaminylserylthreonylvalyl-
    arginylphenylalanylprolylglycylaspartylvalyltyrosyllysylvalyltyrosyl-
    arginyltyrosylasparaginylalanylvalylleucylaspartylprolylleucylisoleucyl-
    threonylalanylleucylleucylglycylthreonylphenylalanylaspartylthreonyl-
    arginylasparaginylarginylisoleucylisoleucylglutamylvalylglutamyl-
    asparaginylglutaminylglutaminylserylprolylthreonylthreonylalanylglutamyl-
    threonylleucylaspartylalanylthreonylarginylarginylvalylaspartylaspartyl-
    alanylthreonylvalylalanylisoleucylarginylserylalanylasparaginylisoleucyl-
    asparaginylleucylvalylasparaginylglutamylleucylvalylarginylglycyl-
    threonylglycylleucyltyrosylasparaginylglutaminylasparaginylthreonyl-
    phenylalanylglutamylserylmethionylserylglycylleucylvalyltryptophyl-
    threonylserylalanylprolylalanylserine (1,185 letters)
    – describes a relatively simple yet lengthy organic molecule. Single-chain organic molecules are constructed of numerous functional groups connected together.
  • Methionylthreonylthreonyl…isoleucine (189,819 letters) – AKA Titin is the largest known protein, consisting of 26,926 amino acids. The molecular weight of the mature protein is approximately 2,993,451.39 Da, and it has a theoretical pI of 6.35. The protein’s chemical formula is C132983H211861N36149O40883S693. It has a theoretical instability index (II) of 39.69, indicating that it would be stable in a test tube.

longest words, words, English language, language, English, longest, dictionary

About the author

Timothy Haroutunian

Timothy Haroutunian is a ServiceNow Cloud Implementation Specialist at Acorio. ServiceNow is an IT Management solution that allows for a complete view of your IT and physical environment.

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6 comments

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  1. abe

    thanks alot

  2. rondj

    acetylseryltyrosylserylisoleucylthreonylserylprolylserylglutaminyl-
    phenylalanylvalylphenylalanylleucylserylserylvalyltryptophylalanyl-
    aspartylprolylisoleucylglutamylleucylleucylasparaginylvalylcysteinyl-
    threonylserylserylleucylglycylasparaginylglutaminylphenylalanyl-
    glutaminylthreonylglutaminylglutaminylalanylarginylthreonylthreonyl-
    glutaminylvalylglutaminylglutaminylphenylalanylserylglutaminylvalyl-
    tryptophyllysylprolylphenylalanylprolylglutaminylserylthreonylvalyl-
    arginylphenylalanylprolylglycylaspartylvalyltyrosyllysylvalyltyrosyl-
    arginyltyrosylasparaginylalanylvalylleucylaspartylprolylleucylisoleucyl-
    threonylalanylleucylleucylglycylthreonylphenylalanylaspartylthreonyl-
    arginylasparaginylarginylisoleucylisoleucylglutamylvalylglutamyl-
    asparaginylglutaminylglutaminylserylprolylthreonylthreonylalanylglutamyl-
    threonylleucylaspartylalanylthreonylarginylarginylvalylaspartylaspartyl-
    alanylthreonylvalylalanylisoleucylarginylserylalanylasparaginylisoleucyl-
    asparaginylleucylvalylasparaginylglutamylleucylvalylarginylglycyl-
    threonylglycylleucyltyrosylasparaginylglutaminylasparaginylthreonyl-
    phenylalanylglutamylserylmethionylserylglycylleucylvalyltryptophyl-
    threonylserylalanylprolylalanylserine. A word I don’t need to know!!!!!

  3. Bob

    Methionylthreonylthreonylâ?Šisoleucine~What is the WHOLE word?

  4. zac

    what does this word mean omicopytheobiblopsychocrystarroscioaerogenethliometeoroaustrohieroanthropoichthyoalectryoophiobotanopegohybdoclerobeloaxinocoscinodoctyliaogeolithopessopessopscphocatoptrotephraoeirochirocmychodactyloarithstichstichocxogeloscogastrogyrocerobletoncoenoscapulinaniac

  5. Timothy Haroutunian

    @ Bob – I don’t know, I haven’t been able to find it. Sorry

    @ Zac – I looked up the word and it doesn’t even recognize it in Google. Sorry.

  6. Sylvaris

    zac,

    omicopytheobiblopsychocrystarroscioaerogenethliometeoroaustrohieroanthropoichthyoalectryoophiobotanopegohybdoclerobeloaxinocoscinodoctyliaogeolithopessopessopscphocatoptrotephraoeirochirocmychodactyloarithstichstichocxogeloscogastrogyrocerobletoncoenoscapulinaniac

    Definition:
    A deluded human who practices divination or forecasting

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